Requisition Number: 2023-05-04176-0164-001
Job Title: Billing Assistant
City: New York
State: NY
Shift: Monday-Friday; 9:30 AM - 5:30 PM
Hours: 35

Simpson Thacher & Bartlett LLP is one of the world’s leading international law firms. The Firm was established in 1884 and has more than 1,000 lawyers. Headquartered in New York with offices in Beijing, Brussels, Hong Kong, Houston, London, Los Angeles, Palo Alto, São Paulo, Tokyo and Washington, D.C., the Firm provides coordinated legal advice and transactional capability to clients around the globe. Cross-border finance, banking and bank regulation, mergers and acquisitions, securities issuance and regulation, project and asset based finance, real estate, asset management, joint ventures, taxation, litigation and dispute resolution are important aspects of the Firm’s practice.

Billing Assistant

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Description/Job Summary

Under general supervision, the Billing Assistant is responsible for assisting Billing Coordinators with billing related inquiries, proformas, invoice processing, data processing and related administrative duties.


  • Assist Billing Coordinators with performing proforma edits, creating and editing bill drafts, and processing invoices
  • Assist Billing Coordinators with the filing of bill packages
  • Maintain and update special instructions related to billing attorneys’ clients and matters
  • Assist with electronic invoice submissions
  • Respond to internal inquiries in a timely manner
  • Support Billing coordinators with follow-up via email or phone as requested, providing superior customer service
  • Observe confidentiality of client and firm matters
  • Provide administrative support as needed (ie. filing, providing client invoice copies, pulling disbursement back up)
  • Flexibility to work additional  hours as needed
  • Assist with special projects as needed
  • Perform other duties as assigned

Required Skills

  • Strong communication skills, both written and oral
  • Ability to effectively present information verbally and in writing
  • Basic math skills: add, subtract, multiply, and divide
  • Ability to use an accounting calculator
  • Ability to utilize computerized accounting and payables software programs (ie. CMS, Excel, Word)
  • Ability to work effectively individually independently, at times with minimal supervision in a fast-paced environment
  • Must be able to work collaboratively in a team environment
  • Proficiency in MS Office Suite and Excel
  • Strong attention to detail
  • Strong customer service skills
  • Demonstrated analytical and problem solving skills
  • Can organize, prioritize, plan and multi-task work activities, with the ability to effectively meet deadlines in a high pressure environment
  • Ability to adapt to all work situations in order to achieve desired results
  • Ability to use discretion with sensitive and confidential information

Preferred Skills

  • A minimum of 1-2 years billing, finance or accounting experience in a law firm environment
  • Minimum 1 year experience with 3E or related applications

Required Education

  • High School diploma or GED equivalent required

Preferred Education

  • BA preferred


Salary Information

The estimated base salary range for this position is $60k to $70k at the time of posting. The actual salary offered will depend on a variety of factors, including without limitation, the qualifications of the individual applicant for the position, years of relevant experience, level of education attained, certifications or other professional licenses held, and if applicable, the location in which the applicant lives and/or from which they will be performing the job. This role is non-exempt meaning that it is overtime pay eligible.

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Simpson Thacher & Bartlett is committed to a collegial work environment in which all individuals are treated with respect and dignity. The Firm prohibits discrimination or harassment based upon race, color, religion, gender, age, national origin, citizenship status, disability, marital or partnership status, sexual orientation, protected veteran’s status or any other legally protected status. “Gender” includes actual or perceived sex, a person’s gender identity, self-image, appearance, behavior or expression, whether or not that gender identity, self-image, appearance, behavior or expression is different from that traditionally associated with the legal sex assigned to that person at birth. This Policy pertains to every aspect of an individual’s relationship with the Firm, including but not limited to recruitment, hiring, compensation, benefits, training and development, promotion, transfer, discipline, termination, and all other privileges, terms and conditions of employment.